Question about Dryers
Hi, We're getting a repetitive thwacking noise in our dryer, like a string or something is caught in the blower wheel or outside the drum, plus a burning smell. I pulled off the back and the lint duct. When I say lint duct, I mean the solid metal duct inside the dryer, not the hose outside. I can't figure out how to take the blower wheel off. I least I think it's called a blower wheel; it's a white plastic fan with no nut in the middle, and it won't pull off. There's a sticker on the lint duct that says "To remove blower wheel, hold motor shaft/blower shaft and turn wheel clockwise." Well, I don't even know how to get to the motor shaft/blower shaft. Help! Thanks!!
You should be able to see the whole thing if you pull off the back cover. SOunds like a string like you said, or a belt that has split, or torn, and the broken piece is slapping around as the barrell turns. You want to get in there where you can see it. So try taking off the rear panel and looking inside? Let me know if this doesn't help. TT
Posted on Feb 03, 2009
A heavy thumping sound coming from the dryer while it is running is a clear sign that your drum belt or roller needs repair.
The drum of the dryer is usually turned by a motor-and-belt assembly. There are two very clear signs that the belt is malfunctioning: You can easily spin the drum by hand when the dryer is off, or you hear a heavy thumping sound coming from the drum when the dryer is running. Here's how to test and replace the drum belt:
Step 1: Locate the belt by removing the back or front service panel. Depending on the type of dryer you own, you may have to prop up the drum to keep it from sagging. Don't let the drum hang; the bolts that hold it in the cabinet could be damaged. Don't remove any more parts than necessary.
Step 2: Identify the belt. The old belt may be threaded around the idler pulley and motor drive shaft. Draw a diagram showing how the pulley is installed so you'll be able to replace it properly. If the old belt is worn or frayed, but not broken, leave it around the drum as a pattern for positioning the new belt; cut the old belt and remove it when the new belt is in position.
Step 3: Remove the old belt from the pulleys and stretch the replacement belt into place. The new belt must extend around the dryer drum and the pulleys. The trick is to align the belt on the drum with the pulleys -- the ribs on the new belt go against the drum.
Step 4: Once the belt is aligned, turn the drum by hand, if possible, to make sure the belt is tracking. You may have to reassemble part of the cabinet to do this.
Some older dryers have a V-belt pulley drum drive. With this system, two or three pulleys of different sizes set the speed of the drum. To change this type of belt, decrease the tension on the idler pulley and install the new belt in the V-grooves of all pulleys. Then place the idler pulley back into position.
With any dryer, make absolutely sure that you replace the old belt with a new one made especially for the dryer. Any difference in belts can change the speed of the drum and cause problems with other dryer components.
Servicing the Drum Bearing
With the back service panel off, check the drum bearing around the dryer drum shaft. You may have to remove the dryer belt to reach it. If the bearing looks worn and dirty, or if it's loose, it should be replaced with a new bearing made for the dryer.
A screw in the center of the drum connects the shaft to the drum. Remove this assembly and then lift off the drum pulley. Support the drum to prevent it from sagging. The bearing fits around the drum shaft and is slip-fit. Pull off the old bearing and install the new one, securing it the same way the old one was held.
On some dryers, the bearing and shaft are held by a U-bolt, and there are two tapered blocks supporting the bearing and shaft. Remove the bearing by first removing the U-bolt and blocks.
When reassembling the bearing unit, make sure the parts go back together the way they came apart. If the part is assembled with shims, the shims should be placed between the bearing and the support channels. Do not overtighten the screws holding the parts; overtightening could cause damage to the bearing. If the bearing has a lubrication wick, saturate it with auto transmission oil.
Servicing the Drum Rollers
The front of the dryer's drum is usually supported by two rollers. These wheels are either metal with a rubber rim or pressed nylon. If the rollers squeak but appear to be in good condition, apply a few drops of 20-weight nondetergent motor oil (not all-purpose oil) to them. If the rollers are worn, you can replace them if the roller assembly is not riveted. To replace drum rollers:
Step 1: Remove the front of the cabinet. Rollers are usually held on a metal shaft by a spring clip.
Step 2: Remove the rollers by prying the spring clip off with a screwdriver. Under the clip are a washer, the rollers, and another washer. You might have to remove a small nut at the back of the shaft and remove the shaft itself to reach the rollers. Remove the rollers from the shaft and clean away built-up lint and dirt before installing the new roller. This dirt and lint buildup could cause the drum to turn slowly or thump, which prevents proper drying and strains other dryer components.
Step 3: Install the new rollers on the shaft with the washers in the same position.
Posted on Feb 02, 2009
In my expereince with this dryer if it is several years old the blower wheel will not come off at all due to the constant heating and cooling of th eplastic it may seize to the shaft. you atually may have to use a hammer and chisel to bust the hub of the blower shaft to remove it.
But i have a 2nd possibilty for the noise you are hearing. there are plastic baffles that are on the inside of the drum that may work loose. the screws for these baffles are on the outside of the drum and can be accessed with the lid to the dryer lifted up. pull lint screen out remove the 2 philips srews then gently release the 2 clips at either outside corner to raise lid. hope that helps peyton
Posted on Feb 02, 2009
Welcome to Fixya! That is your Problem. These can Sometimes get Coins and things inside them. Just Follow the Directions for Removal and it will come right off. It is the Plastic Circle that Attaches to the Exhaust Outlet inside the Dryer. If it will not Release, There are Screws on all sides for Complete Removal.
Posted on Jan 27, 2009
SOURCE: Can't remove dryer blower wheel
I would start by taking off the top and checking the belt to see if part of it tore and is hitting the inside of the cabinet. I have not found a real good way to get the blowers out without having to break them sometimes. the part of the blower that you have to hold is access through the front behind the motor. problem is when you turn the motor shaft, the wrench strips out on the blower, then you have to break them, but unless you need a new motor, it should not have to come off.
Posted on Jan 27, 2009
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Posted on Jan 02, 2017
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